OpenEuphoria

Re: Help

• Posted by Martin Stachon <martin.stachon at worldonline.cz> Jan 31, 2002
• 945 views

>Hi I'v asked before with no responce please can someone HELP?
>Question: Does anyone know how to stretch a bitman (zoom in zoom out) with not
>too much
flicker?
>Please someone help me Thanks Jord

Don't know if you mean DOS,Windows, or some DX app,
but there's a function for it in the WIN32API :

BOOL StretchBlt(

    HDC hdcDest, // handle of destination device context
    int nXOriginDest, // x-coordinate of upper-left corner of dest. rect.
    int nYOriginDest, // y-coordinate of upper-left corner of dest. rect.
    int nWidthDest, // width of destination rectangle
    int nHeightDest, // height of destination rectangle
    HDC hdcSrc, // handle of source device context
    int nXOriginSrc, // x-coordinate of upper-left corner of source rectangle
    int nYOriginSrc, // y-coordinate of upper-left corner of source rectangle
    int nWidthSrc, // width of source rectangle
    int nHeightSrc, // height of source rectangle
    DWORD dwRop  // raster operation code
   );

int SetStretchBltMode(

    HDC hdc, // handle of device context
    int iStretchMode  // bitmap stretching mode
   );

some other functions are in dos graphical toolkits and in exotica.

    Martin