ImageGear Professional DLL v17.1 for Windows Accusoft
Pasting an Image from the Clipboard
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ImageGear Professional DLL v17.1 for Windows > User Guide > Using ImageGear > Images and Documents > Clipboard Operations > Pasting an Image from the Clipboard

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There are two ImageGear functions for pasting the image from the clipboard:

Before you call IG_clipboard_paste_merge_ex(), you can call the function IG_clipboard_paste_op_set() to specify the kind of arithmetic operation you want to apply to the pixels of the two bitmaps that intersect during the paste-merge. IG_clipboard_paste_op_set() takes an AT_MODE constant (defined in accucnst.h) that has a prefix of IG_ARITH_. The full group of arithmetic constants is listed under the function description for IG_clipboard_paste_op_set(). ImageGear also supplies a companion reading function IG_clipboard_paste_op_get() to read the current setting for the paste-merge arithmetic operation. See Example code below:

  Copy Code
AT_DIMENSION nWi, nHi;
UINT nBpp;
BOOL bPasteAvail;
AT_ERRCOUNT nErrcount;
HIGEAR hIGear, hIGear2;
AT_RECT rcClipRect;
nErrcount = IG_load_file("picture.bmp", &hIGear);
if (nErrcount == 0)
{
    nErrcount = IG_image_dimensions_get ( hIGear, &nWid, &nHi, &nBpp );*/
    if ( nErrcount == 0 ) /* If valid image dimensions */
    {/* send the bottom half of the image*/
        rcClipRect.top = nHi/2; /* to the clipboard */
        rcClipRect.left = 0; 
        rcClipRect.right = nWi - 1;
        rcClipRect.bottom = nHi - 1;
        nErrcount = IG_clipboard_copy (hIGear, &rcClipRect);
    }
if (nErrcount == 0)
{
/*load a second image into which to merge the clipboard contents*/
        nErrcount = IG_load_file("picture2.bmp", &hIGear2);
}
if (nErrcount == 0)
{
    nErrcount = IG_clipboard_paste_available_ex(&bPasteAvail);
    if (bPasteAvail == TRUE)
    {
    /* set the paste-merge arithmetic operation to Img1^Img2 */
    nErrcount = IG_clipboard_paste_op_set(hIGear, 
                IG_ARITH_XOR);
    /* merge clipboard's rectangular contents with upper left
     corner at position 0,0         */
        nErrcount = IG_clipboard_paste_merge_ex(hIGear2, 0 , 0);
        }
}
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