|
|
win32 Application程序：为什么我的图显示不出来呢？
望高手不吝赐教，谢谢。。。
其中m0.bmp,m1.bmp,m2.bmp,m3.bmp是3张小图，bg.bmp是大图。
// map1.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "resource.h"
#include<stdio.h>
#define MAX_LOADSTRING 100
// Global Variables:
HINSTANCE hInst; // current instance
TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];
HBITMAP fullmap;
HDC mdc;
const int rows=10,cols=10; // The title bar text
void MyPaint(HDC hdc);
// Foward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);
int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
MSG msg;
HACCEL hAccelTable;
// Initialize global strings
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_MAP1, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// Perform application initialization:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_MAP1);
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return msg.wParam;
}
//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
// COMMENTS:
//
// This function and its usage is only necessary if you want this code
// to be compatible with Win32 systems prior to the 'RegisterClassEx'
// function that was added to Windows 95. It is important to call this function
// so that the application will get 'well formed' small icons associated
// with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_MAP1);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = (LPCSTR)IDC_MAP1;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);
return RegisterClassEx(&wcex);
}
//
// FUNCTION: InitInstance(HANDLE, int)
//
// PURPOSE: Saves instance handle and creates main window
//
// COMMENTS:
//
// In this function, we save the instance handle in a global variable and
// create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
HWND hWnd;
HDC mdc,bufdc,hdc;
hInst = hInstance; // Store instance handle in our global variable
hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
if (!hWnd)
{
return FALSE;
}
MoveWindow(hWnd,10,10,800,600,true);
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
int mapIndex[rows*cols]={2,2,2,2,2,0,1,0,1,0,
3,3,2,2,0,0,0,1,2,0,
3,0,0,0,0,0,0,0,2,1,
2,2,2,0,0,0,0,2,2,2,
2,2,0,0,0,0,2,2,2,2,
2,2,0,0,0,2,0,0,2,2,
2,0,0,0,2,2,2,0,1,0,
0,0,2,3,3,3,1,1,1,1,
0,2,1,3,3,3,3,3,3,0,
2,0,2,1,0,3,0,1,3,2};
hdc=GetDC(hWnd);
mdc=CreateCompatibleDC(hdc);
bufdc=CreateCompatibleDC(hdc);
HBITMAP map[4];
char filename[20]="";
int rownum,colnum;
int x,y,i;
int xstart,ystart;
xstart=(rows-1)*32;
ystart=0;
fullmap=(HBITMAP)LoadImage(NULL,"bg1.bmp",IMAGE_BITMAP,800,600,LR_LOADFROMFILE);
MyPaint(hdc);
for(i=0;i<4;i++)
{
sprintf(filename,"m%d.bmp",i);
map=(HBITMAP)LoadImage(NULL,filename,IMAGE_BITMAP,128,32,LR_LOADFROMFILE);
}
for(i=0;i<rows*cols;i++)
{
SelectObject(bufdc,map[mapIndex]);
rownum=i/cols;
colnum=i%cols;
x=xstart+colnum*32+rownum*(-32);
y=ystart+rownum*16+colnum*16;
BitBlt(mdc,x,y,64,32,bufdc,64,0,SRCAND);
BitBlt(mdc,x,y,64,32,bufdc,0,0,SRCPAINT);
}
ReleaseDC(hWnd,hdc);
DeleteDC(bufdc);
return TRUE;
}
void MyPaint(HDC hdc)
{
SelectObject(mdc,fullmap);
BitBlt(hdc,0,0,800,600,mdc,0,0,SRCCOPY);
}
//
// FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
TCHAR szHello[MAX_LOADSTRING];
LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);
switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
// DrawText(hdc, szHello, strlen(szHello), &rt, DT_CENTER);
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
// Mesage handler for about box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
return TRUE;
case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
}
return FALSE;
}
|
|
发表于 2007-5-20 15:21:00
楼主