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Thread: How to capture signature using Canvas and save in png format?

  1. #26
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    Default Re: How to capture signature using Canvas and save in png format?

    it doesnt have error message. i can compile it, just it has red line below the text. and when i pressed save button it eventdispatchthread. java and show this

    if (theQueue.peekEvent() != null ||
    !SunToolkit.isPostEventQueueEmpty()) {
    theQueue.initDispatchThread();
    }
    AWTAutoShutdown.getInstance().notifyThreadFree(thi s);
    }
    }
    }

    void pumpEvents(Conditional cond) {
    pumpEvents(ANY_EVENT, cond);
    }

    void pumpEventsForHierarchy(Conditional cond, Component modalComponent) {
    pumpEventsForHierarchy(ANY_EVENT, cond, modalComponent);
    }

  2. #27
    Super Moderator Norm's Avatar
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    Default Re: How to capture signature using Canvas and save in png format?

    Where did you get that code? What does it have to do with creating and saving an image to a disk file?

    You are copying too much code that you do not understand into your program.
    You are trying to run before you know how to walk.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #28
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    Default Re: How to capture signature using Canvas and save in png format?

    yeah, becuse i dont understand java programming, that why i need your help

  4. #29
    Super Moderator Norm's Avatar
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    Default Re: How to capture signature using Canvas and save in png format?

    You need to start at the beginning to learn how to build a GUI app and use the different java classes. Here is a link to the tutorial. Find an interesting topic and read about it.
    The Really Big Index
    If you don't understand my answer, don't ignore it, ask a question.

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