FiveTech Software tech support forums

Norberto,

Very good! Thanks

yes, it was StretchBlt() instead of BitBlt() to magnify it

... them. If you read 1 pixel, then you could write four pixels for it. This way you magnify the image. There is a way to speed up this process, using BitBlt(), so you don't have to process pixel by pixel, instead you manage all of them at one time. Keep in mind that this will only work on bitmaps. ...

... 1, 1 ) LineTo( ::hDC, ::nWidth, ::nHeight ) return nil La función para copiar desde un hDC a otro hDC es BitBlt(). Sigo...

... datos de un bitmap tipo BMP, con cabeceras, longitud, etc...) se podría crear el bitmap correspondiente para dibujarlo de fondo con PalBmpDraw(), BitBlt(), o StretchBmp(). He intentado crear un BITMAP con CreateCompatibleBitmap (dentro GDI32.DLL), simplemente copiando el fondo del dialogo ( como ...

... COMPATBMP ) // ( hDC, nWidth, nHeight ) { hb_retnl( (LONG) CreateCompatibleBitmap( (HDC) hb_parnl(1),hb_parni(2), hb_parni(3) ) ); } HB_FUNC( BITBLT ) // ( hdcDest, nXDest, nYDest, nWidth, nHeight,hdcSrc, nXSrc , nYSrc, dwRop ) { hb_retl( BitBlt( ( HDC ) hb_parnl( 1 ), hb_parni( 2 ), hb_parni( ...