Windows CE描画プロセス

BeginPaintの動作1.無効領域を有効領域2にする.転送WM_ERASEBACKGROUNDメッセージ、バックグラウンドを再描画3.WM_のみPAINTコール
4.EndPaint(hWnd,&ps)とダブルペア
 
 
//Message dispatch table for MainWindowProc
WM_PAINT, DoPaintMain,
 
in,hシフト
LRESULT DoPaintMain (HWND, UINT, WPARAM, LPARAM);
//定点設定の仕組み
typedef struct tagPOINTS2{    SHORT   x;    SHORT   y;} POINTS2;
 
 
 

LRESULT DoPaintMain (HWND hWnd, UINT wMsg, WPARAM wParam, 
                     LPARAM lParam) {

        
        //*********************  ***********************//

//http://genewince.blogspot.com/2008/03/evc-4-resource.html     bmp   
        DWORD a;
        ULONG b;
        LPVOID c;
        PUCHAR d;
        HANDLE e;
        PAINTSTRUCT ps;
        RECT rect;
        HDC hdc;
        BITMAP bm;
        
        GetUpdateRect(hWnd,&rect,1);
        HBITMAP hBitmap2 = SHLoadDIBitmap(TEXT("//Storage Card//33332.bmp"));        
        //HBITMAP hBitmap2;
        //hBitmap2 = LoadBitmap(hInst,(LPCTSTR)IDB_BITMAP1);
    
        GetClientRect (hWnd, &rect);//          
        hdc = BeginPaint(hWnd,&ps);

        if (Pressing){ Rectangle(hdc,pt.x,pt.y,cur_pt.x,cur_pt.y); //       
        old_pt.x=cur_pt.x;
        old_pt.y=cur_pt.y;
        }
        if(old_pt.x==cur_pt.x && old_pt.y==cur_pt.y){
        Rectangle(hdc,pt.x,pt.y,cur_pt.x,cur_pt.y);
        }

        HDC hdcMem = CreateCompatibleDC(hdc);
        HBITMAP hbmOld = (HBITMAP)SelectObject(hdcMem, hBitmap2);

        GetObject(hBitmap2, sizeof(BITMAP), &bm);//        

    //   BitBlt(hdc , rect.left , rect.top , bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCCOPY);//SRCCOPY
StretchBlt(hdc , rect.left , rect.top , (bm.bmWidth)/1, (bm.bmHeight)/1, hdcMem, 0, 0, bm.bmWidth,bm.bmHeight, SRCCOPY);//SRCCOPY
 SelectObject(hdcMem, hbmOld);
        DeleteDC(hdcMem);

    //    EndPaint(hWnd, &ps);
    //    return 0;
        //*********************  ***********************//
        
        //*********************  ***********************//
        SetPixel(hdc,400,400,RGB(0x00,0x00,0xFF));
        //*********************  ***********************//

        //*********************  ***********************//
        //
        POINT pts[2];
        pts[0].x=20;
        pts[0].y=20;
        pts[1].x=200;
        pts[1].y=150;
        Polyline(hdc, pts ,2);
        HPEN hPen = CreatePen(PS_DASH,1,RGB(0xff,0x88,0x0));
        SelectObject(hdc, hPen);
        MoveToEx(hdc,150,150,NULL);
        LineTo(hdc,500,160);
        
        //*********************  ***********************//

        //*********************   ********************//

        HBRUSH hBrush;
        hBrush = CreateSolidBrush(RGB(0xAA,0x55,0x55));
        SelectObject(hdc, hBrush);
        Rectangle(hdc,200,200,550,500);// 
        hBrush = CreateSolidBrush(RGB(0x22,0xAA,0x33));
        SelectObject(hdc, hBrush);
        Ellipse(hdc,300,100,500,300);// 
        hBrush = CreateSolidBrush(RGB(0x22,0x2A,0xAA));
        SelectObject(hdc, hBrush);
        RoundRect(hdc,0,300,200,500,50,30);//   
        hBrush = CreateSolidBrush(RGB(0xdd,0x6A,0xAA));
        SelectObject(hdc, hBrush);
        POINT ppt[3];
        ppt[0].x=60;
        ppt[0].y=60;
        ppt[1].x=20;
        ppt[1].y=100;
        ppt[2].x=100;
        ppt[2].y=100;
        Polygon(hdc,ppt,3);//     

        TRIVERTEX vert[2];
        GRADIENT_RECT gRect;
        RECT prect = {100 , 300 , 300 ,500};

        vert[0].x=prect.left;
        vert[0].y=prect.top;
        vert[0].Red=0xAC00;
        vert[0].Green=0xF300;
        vert[0].Blue=0x8100;
        vert[0].Alpha=0x0000;

        vert[1].x=prect.right;
        vert[1].y=prect.bottom;
        vert[1].Red=0xA300;
        vert[1].Green=0x5700;
        vert[1].Blue=0xD500;
        vert[1].Alpha=0x0000;

        gRect.UpperLeft=1;
        gRect.LowerRight=0;

        GradientFill(hdc,vert,2,&gRect,1,GRADIENT_FILL_RECT_H);

        //*********************   ********************//


        //****************        **************//

        TCHAR szOut[256];
        a=sizeof(DOUBLE);
        wsprintf(szOut,TEXT("a=%d"),a);
        ExtTextOut(hdc,200,200,0,NULL,szOut,lstrlen(szOut),NULL);
        //****************        ***************//
   // PAINTSTRUCT ps;
   // RECT rect;
   // HDC hdc;
    RECT rectText = rect;
    rectText.left=0;
    rectText.top=0;
        // Get the size of the client rectangle
    GetClientRect (hWnd, &rect);
    SetBkMode (hdc, TRANSPARENT);
    hdc = BeginPaint (hWnd, &ps); 
    
    DrawText (hdc, TEXT (" "), -1, &rectText, DT_SINGLELINE);


     EndPaint (hWnd, &ps); 

    return 0;
    
}