Scrolling Image Control

This is a discussion on Scrolling Image Control within the Windows Programming forums, part of the Platform Specific Boards category; Hi all, I am trying to display an image onto a fixed sized static control and if the image exceeds ...

  1. #1
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    Scrolling Image Control

    Hi all,

    I am trying to display an image onto a fixed sized static control and if the image exceeds the size of the control, scrolling is enabled. However whenever I load the image onto the control by using

    Code:
    SendMessage( m_hMain, STM_SETIMAGE, ( WPARAM )IMAGE_BITMAP, ( LPARAM )m_hDisplay );
    the static control gets resized to the bitmap's size.

    Is there a way to display the image on the static control then enabling the scrollbars to work or is there another approach to this?

    I appreciate any help. Thanks

  2. #2
    the Great ElastoManiac's Avatar
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    well you could resize your bitmap to fit the control. You can do that outside the program.
    However if bitmap dimensions vary, then there is a function for that...
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  3. #3
    train spotter
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    If using only XP, you can use the SS_REALSIZECONTROL style on the static so the image is resized to the frame.

    Else look at ownerdraw, ScrollDC(), BitBlit() ect.
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  4. #4
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    Hi thanks for the reply, however here I would like to retain the size of the original bitmap and allow scrolling when the bitmap size exceeds the control size.

    I added WS_HSCROLL and WS_VSCROLL to the static control however it seems that the scrollbars are not working even when the image is larger than the control size. Is there a way to work around this issue?

    Thanks again

  5. #5
    train spotter
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    Whan I need to do this I use a back buffer and do my own drawing.

    I use CreateCompatibleDC(), CreateCompatibelBitmap(), ScrollDC(), BitBlit(), SelectObject() ect.
    "Man alone suffers so excruciatingly in the world that he was compelled to invent laughter."
    Friedrich Nietzsche

    "I spent a lot of my money on booze, birds and fast cars......the rest I squandered."
    George Best

    "If you are going through hell....keep going."
    Winston Churchill

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