dit heb ik al :
ik weet echter niet of CaptureScreen( file ) goed is
Canvas.h :
Code: Selecteer alles
//Canvas.h 4-10-2010
#ifndef CANVAS_H
#define CANVAS_H
#include <windows.h>
#include "CColor.h"
enum ePen { psolid = PS_SOLID
, dot = PS_DOT
, dash = PS_DASH
, dashDot = PS_DASHDOT
, dashDotDot = PS_DASHDOTDOT } ;
enum eBrush { bDiagonal = HS_BDIAGONAL
, fDiagonal = HS_FDIAGONAL
, cross = HS_CROSS
, horizontal = HS_HORIZONTAL
, diagCross = HS_DIAGCROSS
, vertical = HS_VERTICAL
, bsolid = 0 } ;
class CCanvas
{
public :
HDC hdc ;
HWND window ;
int height , width ;
void backColor( int clr ) ;
void brush( int clr , eBrush b = bsolid ) ;
void CaptureScreen( const char* filename ) ;
void chord( int x1 , int y1 , int x2 , int y2
, int x3 , int y3 , int x4 , int y4 ) ;
void ellipse( int x , int y , int dx , int dy ) ;
void pen( int clr , int thick = 1
, ePen line = psolid ) ;
void pset( int x , int y , int clr ) ;
void polyBlezier( POINT *p , int max ) ;
void polygon( POINT *p , int max ) ;
int getPixel( int x , int y ) ;
void rectangle( int x , int y , int dx , int dy ) ;
void roundRect( int x , int y , int dx , int dy
, int hx , int hy ) ;
void text( int x , int y
, char* txt , char* fontname
, int fontsize , int clr ) ;
private :
HDC _hdc ;
HPEN _pen ;
HBRUSH _brush ;
} ;
extern CCanvas Canvas ;
#endif
Code: Selecteer alles
//Canvas.cpp 4-10-2010
#include "Canvas.h"
CCanvas Canvas ;
void CCanvas::backColor(int clr)
{
SetBkColor( hdc , clr ) ;
}
void CCanvas::brush(int clr , eBrush b)
{
if ( b == bsolid )
{
_brush = CreateSolidBrush( clr ) ;
}
else
{
_brush = CreateHatchBrush( b , clr ) ;
}
}
/*
void CCanvas::CaptureScreen( const char* filename )
{
// get screen rectangle
RECT windowRect ;
GetWindowRect( window, &windowRect ) ;
// bitmap dimensions
int bitmap_dx = windowRect.right - windowRect.left;
int bitmap_dy = windowRect.bottom - windowRect.top;
// create file
ofstream file( filename , ios::binary ) ;
if( !file ) return ;
// save bitmap file headers
BITMAPFILEHEADER fileHeader ;
BITMAPINFOHEADER infoHeader ;
fileHeader.bfType = 0x4d42 ;
fileHeader.bfSize = 0 ;
fileHeader.bfReserved1 = 0 ;
fileHeader.bfReserved2 = 0 ;
fileHeader.bfOffBits = sizeof( BITMAPFILEHEADER )
+ sizeof( BITMAPINFOHEADER ) ;
infoHeader.biSize = sizeof( infoHeader ) ;
infoHeader.biWidth = bitmap_dx ;
infoHeader.biHeight = bitmap_dy ;
infoHeader.biPlanes = 1 ;
infoHeader.biBitCount = 24 ;
infoHeader.biCompression = BI_RGB ;
infoHeader.biSizeImage = 0 ;
infoHeader.biXPelsPerMeter = 0 ;
infoHeader.biYPelsPerMeter = 0 ;
infoHeader.biClrUsed = 0 ;
infoHeader.biClrImportant = 0 ;
file.write((char*)&fileHeader, sizeof(fileHeader));
file.write((char*)&infoHeader, sizeof(infoHeader));
// dibsection information
BITMAPINFO info ;
info.bmiHeader = infoHeader ;
// ------------------
// THE IMPORTANT CODE
// ------------------
// create a dibsection and
// blit the window contents to the bitmap
HDC winDC = GetWindowDC( window ) ;
HDC memDC = CreateCompatibleDC( winDC ) ;
BYTE* memory = 0 ;
HBITMAP bitmap = CreateDIBSection( winDC , &info
, DIB_RGB_COLORS , (void**)&memory , 0 , 0 ) ;
SelectObject( memDC , bitmap ) ;
BitBlt( memDC , 0 , 0 , bitmap_dx , bitmap_dy
, winDC , 0 , 0 , SRCCOPY ) ;
DeleteDC( memDC ) ;
ReleaseDC( window , winDC ) ;
// save dibsection data
int bytes = ( ( ( 24 * bitmap_dx + 31 )
& ( ~31 ) ) / 8 ) * bitmap_dy ;
file.write( memory , bytes ) ;
// HA HA, forgot paste in the DeleteObject lol, happy now ;) ?
DeleteObject( bitmap ) ;
}
*/
void CCanvas::chord( int x1 , int y1
, int x2 , int y2 , int x3 , int y3 , int x4 , int y4 )
{
Chord( hdc , x1 , y1 , x2 , y2 , x3 , y3 , x4 , y4 ) ;
}
void CCanvas::ellipse(
int x , int y , int dx , int dy )
{
Ellipse( hdc , x , y , dx , dy ) ;
}
void CCanvas::pen( int clr , int thick , ePen line )
{
_pen = CreatePen( line , thick , clr ) ;
}
void CCanvas::polyBlezier( POINT *p , int max)
{
PolyBezier( hdc , p , max ) ;
}
void CCanvas::polygon( POINT *p , int max)
{
Polygon( hdc , p , max ) ;
}
int CCanvas::getPixel( int x , int y )
{
return GetPixel( hdc , x , y ) ;
}
void CCanvas::pset( int x , int y , int clr )
{
SetPixel( hdc , x , y , clr ) ;
}
void CCanvas::rectangle(
int x , int y , int dx , int dy )
{
Rectangle( hdc , x , y , dx , dy ) ;
}
void CCanvas::text( int x , int y
, char* txt
, char* fontname
, int fontsize , int clr )
{
LOGFONT logfont = { } ;
// init all members to 0
strcpy( logfont.lfFaceName
, fontname ) ; // max 31+1 chars
logfont.lfHeight = fontsize ;
HFONT font =
CreateFontIndirect( &logfont ) ;
HFONT oldfont =
(HFONT)SelectObject( hdc , font ) ;
SetBkMode( hdc , TRANSPARENT ) ;
SetTextColor( hdc , clr ) ;
TextOut( hdc , x , y , txt
, strlen( txt ) ) ;
SelectObject( hdc , oldfont ) ;
DeleteObject( font ) ;
}
