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  1. elgohary

    Problems linking a dll project!!!!

    It depends on what you need. I needed to have TIFF support. I later found a much better solution was to use libtiff. Though to use this, you will have to do some work to get the libtiff dll to link properly. What capabilities do you need?
  2. elgohary

    Losing HBITMAP

    Hi all, I have function that takes an HBITMAP as a param. The function internally generates a TBitmap and releases the handle to the passed HBITMAP param. The function correctly generated the TBitmap. After I release the handle to the parameter, I inspected the bitmap object and it looks...
  3. elgohary

    Problems linking a dll project!!!!

    It turned out to be coming from Envision Image Library (a 3rd party library). FYI: I do NOT recommend using it!!! There is no tech support and it is very flaky.
  4. elgohary

    Problems linking a dll project!!!!

    I wrote some code to interface between a USB driver and an application. I tested the code by creating a control app and including the source. In the control app project I needed to include a series of files in order for the code to compile. None the less, the code functioned properly. Now...
  5. elgohary

    DeviceIOControl

    Sometimes I want to kick myself in the pants... The function name is DeviceIoControl(...), not DeviceIOControl(...). Thanks for your comment 2ffat.
  6. elgohary

    Borland C++ 6 and MFC

    Not to point out the obvious but... did you call Init() first? :-)
  7. elgohary

    DeviceIOControl

    I don't think the problems are related. If my problem were to be with the dll then I would get a linker error. I get a compiler error. I think that it is having a problem finding the declaration, which is in winbase.h. Thanks for you comment.
  8. elgohary

    DeviceIOControl

    I am using BCB6. I need to use the WIN32 API function DeviceIOControl() in order to communicate with a USB driver. I have included windows.h, winioctl.h, winbase.h(where it is declared), and dbt.h. Here is my problem: When I build my project it get the following error. [C++ Error]...

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