Windows環境下32位組譯工具設計C版code–第四章

採用的編譯環境為VC++6.0

 

（一）第一個視窗函數

FirstWindow.c#include <windows.h></p><p>LRESULT CALLBACK ProcWinMain(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)<br />{<br />PAINTSTRUCT stPs;<br />RECTstRect;<br />HDChDc;</p><p>switch(uMsg)<br />{<br />case WM_PAINT:<br />hDc = BeginPaint(hWnd, &stPs);<br />GetClientRect(hWnd, &stRect);<br />DrawText(hDc, TEXT("Win32 Programing, Simple and Powerful"), -1, &stRect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);<br />EndPaint(hWnd, &stPs);<br />return 0;</p><p>case WM_CLOSE:<br />DestroyWindow(hWnd);<br />PostQuitMessage(0);<br />return 0;<br />}<br />return DefWindowProc(hWnd, uMsg, wParam, lParam);<br />}</p><p>int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)<br />{<br />WNDCLASSEXstWndCls;<br />MSGstMsg;<br />HWNDhWnd;</p><p>RtlZeroMemory(&stWndCls, sizeof(stWndCls));<br />stWndCls.hCursor = LoadCursor(NULL, IDC_ARROW);<br />stWndCls.hIcon = LoadIcon(NULL, IDI_APPLICATION);<br />stWndCls.hIconSm = LoadIcon(NULL, IDI_APPLICATION);<br />stWndCls.cbWndExtra = 0;<br />stWndCls.cbClsExtra = 0;<br />stWndCls.hInstance = hInstance;<br />stWndCls.cbSize = sizeof(WNDCLASSEX);<br />stWndCls.style = CS_HREDRAW | CS_VREDRAW;<br />stWndCls.lpfnWndProc = ProcWinMain;<br />stWndCls.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);<br />stWndCls.lpszClassName = TEXT("MyClass");<br />stWndCls.lpszMenuName = NULL;</p><p>RegisterClassEx(&stWndCls);</p><p>hWnd = CreateWindowEx(WS_EX_CLIENTEDGE, TEXT("MyClass"), TEXT("My First Window"),<br />WS_OVERLAPPEDWINDOW, 100, 100, 600, 400, NULL, NULL, hInstance, NULL);<br />CreateWindowEx(0, TEXT("Button"), TEXT("&OK"), WS_CHILD | WS_VISIBLE, 10, 10, 65, 22, hWnd, (HMENU)1, hInstance, NULL);<br />ShowWindow(hWnd, SW_SHOWNORMAL);<br />UpdateWindow(hWnd);</p><p>while(GetMessage(&stMsg, NULL, 0, 0))<br />{<br />TranslateMessage(&stMsg);<br />DispatchMessage(&stMsg);<br />}<br />return stMsg.wParam;<br />}

 

（二）視窗間的通訊

//視窗間訊息發送 接收程式Receive.c 代碼在FirstWindow.c代碼ProcWinMain函數中添加變數定義：

TCHAR buffer[512];<br />TCHAR szFmt[]=TEXT("Received WM_SETTEXT message/nparam: %08x/ntext: %s");

 

//然後在處理WM_PAINT訊息程式碼片段後添加下述代碼：

case WM_SETTEXT:<br /> wsprintf(buffer, szFmt, lParam, lParam); </p><p> MessageBox(NULL, buffer, TEXT("Success!"), MB_OK | MB_ICONINFORMATION);<br /> return 0;</p><p>

 

//發送函數Send.c代碼：

#include <windows.h></p><p>HWND hWnd;<br />TCHAR szBuffer[256];</p><p>const TCHAR szCaption[] = TEXT("SendMessage");<br />const TCHAR szStart[] = TEXT("Press OK start SendMessage, param: %08x ");<br />const TCHAR szReturn[] = TEXT("SendMessage returned!");<br />const TCHAR szDestClass[] = TEXT("MyClass");<br />const TCHAR szText[] = TEXT("Text send to other windows");<br />const TCHAR szNotFound[] = TEXT("Receive Message Window not found");</p><p>int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR CmdLine, int iCmdShow)<br />{<br /> if((hWnd = FindWindow(szDestClass, NULL)) != NULL)<br /> {<br /> wsprintf(szBuffer, szStart, szText);<br /> MessageBox(NULL, szBuffer, szCaption, MB_OK);<br /> SendMessage(hWnd, WM_SETTEXT, 0, (LPARAM)szText);<br /> MessageBox(NULL, szReturn, szCaption, MB_OK);<br /> }<br /> else<br /> MessageBox(NULL, szNotFound, szCaption, MB_OK);<br /> return 0;<br />}</p><p>

 

（三）視窗間資料傳遞

//只要將（二）中接收代碼Receive.c中case: WM_SETTEXT段替換為：

case WM_COPYDATA:<br /> wsprintf(buffer, szFmt, ((COPYDATASTRUCT *)lParam)->lpData, ((COPYDATASTRUCT *)lParam)->lpData);<br /> MessageBox(NULL, buffer, TEXT("Success!"), MB_OK | MB_ICONINFORMATION);<br /> return 0;</p><p>

 

//只要將（二）中傳送檔案Send.c中WinMain改為：

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR CmdLine, int iCmdShow)<br />{<br /> COPYDATASTRUCT stCDS;<br /> stCDS.cbData = sizeof(szText);<br /> stCDS.dwData = 0;<br /> stCDS.lpData = szText;<br /> if((hWnd = FindWindow(szDestClass, NULL)) != NULL)<br /> {<br /> wsprintf(szBuffer, szStart, szText);<br /> MessageBox(NULL, szBuffer, szCaption, MB_OK);<br /> //SendMessage(hWnd, WM_SETTEXT, 0, (LPARAM)szText);<br /> SendMessage(hWnd, WM_COPYDATA, 0, (LPARAM)&stCDS);<br /> MessageBox(NULL, szReturn, szCaption, MB_OK);<br /> }<br /> else<br /> MessageBox(NULL, szNotFound, szCaption, MB_OK);<br /> return 0;<br />}