ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / GUI Component API Reference / GUI Component Functions Reference / Image Processing Effects Functions / IG_gui_fx_chroma_key_dlg
In This Topic
    IG_gui_fx_chroma_key_dlg
    In This Topic

    This function shows the dialog that allows you to blend two images.

    Declaration:

     
    Copy Code
    BOOL ACCUAPI IG_gui_fx_chroma_key_dlg (
            HWND hWnd, 
            LPAT_IGGUI_FX_CHROMA_KEY lpFxChromaKeyData
    );
    

    Arguments:

    Name Type Description
    hWnd HWND A handle of the parent window.
    lpFxChromaKeyData LPAT_IGGUI_FX_CHROMA_KEY A pointer to the AT_IGGUI_FX_CHROMA_KEY structure.

    Return Value:

    If the user specifies parameters and clicks the OK button, the return value is non-zero. If the user cancels or closes the dialog box or an error occurs, the return value is zero.

    Supported Raster Image Formats:

    All pixel formats supported by ImageGear for C and C++, except:
    Indexed RGB – 1 bpp;
    Grayscale – 1 bpp.

    Sample:

    Image Processing

    Example:

     
    Copy Code
    #include "IG_gui_common.h"
    AT_IGGUI_FX_CHROMA_KEY FxChromaKey;
    FxChromaKey.cbSize = sizeof (FxChromaKey);
    FxChromaKey.hWnd = hWnd;
    FxChromaKey.hIGear = hIGear;
    FxChromaKey.uFlags |= IG_IGGUI_FX_SETUP_EMPTY_RECT;
    if (IG_gui_fx_chroma_key_dlg (hWnd, &FxChromaKey))
    {
    InvalidateRect(hWnd, NULL, FALSE);
            UpdateWindow(hWnd);
    }