Mixing
cordova-plugin-datecs-printer Can't print image
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
0
I use ionic3 to make the mobile app , and install cordova-plugin-datecs-printer
When I use the sample code to print image, can't print image
here is my code:
function printMyImage() {
var image = new Image();
image.onload = function() {
var canvas = document.createElement('canvas');
canvas.height = 50;
canvas.width = 50;
var context = canvas.getContext('2d');
context.drawImage(image, 0, 0);
var imageData = canvas.toDataURL('image/jpeg').replace(/^data:image/(png|jpg|jpeg);base64,/, ""); //remove mimetype
window.DatecsPrinter.printImage(
imageData, //base64
canvas.width,
canvas.height,
1,
function() {
printMyBarcode();
},
function(Error) {
alert(JSON.stringify(Error));
}
)
};
image.src = 'assets/imgs/Logo2.jpg';
}
ionic3 cordova-plugins escpos
edited Jan 3 at 9:02
Manu K M
623316
asked Jan 3 at 5:53
uokivanuokivan
12
add a comment |
0
I use ionic3 to make the mobile app , and install cordova-plugin-datecs-printer
When I use the sample code to print image, can't print image
here is my code:
function printMyImage() {
var image = new Image();
image.onload = function() {
var canvas = document.createElement('canvas');
canvas.height = 50;
canvas.width = 50;
var context = canvas.getContext('2d');
context.drawImage(image, 0, 0);
var imageData = canvas.toDataURL('image/jpeg').replace(/^data:image/(png|jpg|jpeg);base64,/, ""); //remove mimetype
window.DatecsPrinter.printImage(
imageData, //base64
canvas.width,
canvas.height,
1,
function() {
printMyBarcode();
},
function(Error) {
alert(JSON.stringify(Error));
}
)
};
image.src = 'assets/imgs/Logo2.jpg';
}
ionic3 cordova-plugins escpos
edited Jan 3 at 9:02
Manu K M
623316
asked Jan 3 at 5:53
uokivanuokivan
12
add a comment |
0
0
0
I use ionic3 to make the mobile app , and install cordova-plugin-datecs-printer
When I use the sample code to print image, can't print image
here is my code:
function printMyImage() {
var image = new Image();
image.onload = function() {
var canvas = document.createElement('canvas');
canvas.height = 50;
canvas.width = 50;
var context = canvas.getContext('2d');
context.drawImage(image, 0, 0);
var imageData = canvas.toDataURL('image/jpeg').replace(/^data:image/(png|jpg|jpeg);base64,/, ""); //remove mimetype
window.DatecsPrinter.printImage(
imageData, //base64
canvas.width,
canvas.height,
1,
function() {
printMyBarcode();
},
function(Error) {
alert(JSON.stringify(Error));
}
)
};
image.src = 'assets/imgs/Logo2.jpg';
}
ionic3 cordova-plugins escpos
edited Jan 3 at 9:02
Manu K M
623316
asked Jan 3 at 5:53
uokivanuokivan
12
I use ionic3 to make the mobile app , and install cordova-plugin-datecs-printer
When I use the sample code to print image, can't print image
here is my code:
function printMyImage() {
var image = new Image();
image.onload = function() {
var canvas = document.createElement('canvas');
canvas.height = 50;
canvas.width = 50;
var context = canvas.getContext('2d');
context.drawImage(image, 0, 0);
var imageData = canvas.toDataURL('image/jpeg').replace(/^data:image/(png|jpg|jpeg);base64,/, ""); //remove mimetype
window.DatecsPrinter.printImage(
imageData, //base64
canvas.width,
canvas.height,
1,
function() {
printMyBarcode();
},
function(Error) {
alert(JSON.stringify(Error));
}
)
};
image.src = 'assets/imgs/Logo2.jpg';
}
ionic3 cordova-plugins escpos
ionic3 cordova-plugins escpos
edited Jan 3 at 9:02
Manu K M
623316
asked Jan 3 at 5:53
uokivanuokivan
12
edited Jan 3 at 9:02
Manu K M
623316
asked Jan 3 at 5:53
uokivanuokivan
12
edited Jan 3 at 9:02
Manu K M
623316
edited Jan 3 at 9:02
Manu K M
623316
edited Jan 3 at 9:02
Manu K M
623316
623316
asked Jan 3 at 5:53
uokivanuokivan
12
asked Jan 3 at 5:53
uokivanuokivan
12
asked Jan 3 at 5:53
uokivanuokivan
12
12
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
0
Thee problem is that you're drawing an image without data in it,
you must fill the src of the image first using
image.src = 'assets/imgs/Logo2.jpg';
then after that check if the image is loaded using
image.onload() and perform whatever you need like printing the image
answered Feb 18 at 12:42
Bellal MohamedBellal Mohamed
2519
Thank you for this code snippet, which might provide some limited, immediate help. A proper explanation would greatly improve its long-term value by showing why this is a good solution to the problem, and would make it more useful to future readers with other, similar questions. Please edit your answer to add some explanation, including the assumptions you've made.
– Murray Foxcroft
Feb 18 at 13:33
Ok I'll edit it now
– Bellal Mohamed
Feb 18 at 20:12
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54017000%2fcordova-plugin-datecs-printer-cant-print-image%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
Thee problem is that you're drawing an image without data in it,
you must fill the src of the image first using
image.src = 'assets/imgs/Logo2.jpg';
then after that check if the image is loaded using
image.onload() and perform whatever you need like printing the image
answered Feb 18 at 12:42
Bellal MohamedBellal Mohamed
2519
Thank you for this code snippet, which might provide some limited, immediate help. A proper explanation would greatly improve its long-term value by showing why this is a good solution to the problem, and would make it more useful to future readers with other, similar questions. Please edit your answer to add some explanation, including the assumptions you've made.
– Murray Foxcroft
Feb 18 at 13:33
Ok I'll edit it now
– Bellal Mohamed
Feb 18 at 20:12
add a comment |
0
Thee problem is that you're drawing an image without data in it,
you must fill the src of the image first using
image.src = 'assets/imgs/Logo2.jpg';
then after that check if the image is loaded using
image.onload() and perform whatever you need like printing the image
answered Feb 18 at 12:42
Bellal MohamedBellal Mohamed
2519
Thank you for this code snippet, which might provide some limited, immediate help. A proper explanation would greatly improve its long-term value by showing why this is a good solution to the problem, and would make it more useful to future readers with other, similar questions. Please edit your answer to add some explanation, including the assumptions you've made.
– Murray Foxcroft
Feb 18 at 13:33
Ok I'll edit it now
– Bellal Mohamed
Feb 18 at 20:12
add a comment |
0
0
0
Thee problem is that you're drawing an image without data in it,
you must fill the src of the image first using
image.src = 'assets/imgs/Logo2.jpg';
then after that check if the image is loaded using
image.onload() and perform whatever you need like printing the image
answered Feb 18 at 12:42
Bellal MohamedBellal Mohamed
2519
Thee problem is that you're drawing an image without data in it,
you must fill the src of the image first using
image.src = 'assets/imgs/Logo2.jpg';
then after that check if the image is loaded using
image.onload() and perform whatever you need like printing the image
answered Feb 18 at 12:42
Bellal MohamedBellal Mohamed
2519
edited Feb 18 at 20:14
answered Feb 18 at 12:42
Bellal MohamedBellal Mohamed
2519
answered Feb 18 at 12:42
Bellal MohamedBellal Mohamed
2519
answered Feb 18 at 12:42
Bellal MohamedBellal Mohamed
2519
2519
Thank you for this code snippet, which might provide some limited, immediate help. A proper explanation would greatly improve its long-term value by showing why this is a good solution to the problem, and would make it more useful to future readers with other, similar questions. Please edit your answer to add some explanation, including the assumptions you've made.
– Murray Foxcroft
Feb 18 at 13:33
Ok I'll edit it now
– Bellal Mohamed
Feb 18 at 20:12
add a comment |
Thank you for this code snippet, which might provide some limited, immediate help. A proper explanation would greatly improve its long-term value by showing why this is a good solution to the problem, and would make it more useful to future readers with other, similar questions. Please edit your answer to add some explanation, including the assumptions you've made.
– Murray Foxcroft
Feb 18 at 13:33
Ok I'll edit it now
– Bellal Mohamed
Feb 18 at 20:12
Thank you for this code snippet, which might provide some limited, immediate help. A proper explanation would greatly improve its long-term value by showing why this is a good solution to the problem, and would make it more useful to future readers with other, similar questions. Please edit your answer to add some explanation, including the assumptions you've made.
– Murray Foxcroft
Feb 18 at 13:33
Thank you for this code snippet, which might provide some limited, immediate help. A proper explanation would greatly improve its long-term value by showing why this is a good solution to the problem, and would make it more useful to future readers with other, similar questions. Please edit your answer to add some explanation, including the assumptions you've made.
– Murray Foxcroft
Feb 18 at 13:33
Ok I'll edit it now
– Bellal Mohamed
Feb 18 at 20:12
Ok I'll edit it now
– Bellal Mohamed
Feb 18 at 20:12
add a comment |
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54017000%2fcordova-plugin-datecs-printer-cant-print-image%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
