网站推广句子,怎么建单位的网站,中国做趋势的网站,设计师网站 知乎c语言制作UI界面需要相关的UI库如windows操作系统本身就提供了UI的接口一个简单的示例代码如下#include LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);int WINAPI WinMain(HINSTANCE hinstance,HINSTANCE hprevinstance,LPSTR line,int cmd){ static TCHAR AppName[]TEX…c语言制作UI界面需要相关的UI库如windows操作系统本身就提供了UI的接口一个简单的示例代码如下#include LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);int WINAPI WinMain(HINSTANCE hinstance,HINSTANCE hprevinstance,LPSTR line,int cmd){ static TCHAR AppName[]TEXT(99); HWND hwnd; MSG msg; WNDCLASS wndclass; wndclass.styleCS_HREDRAW|CS_VREDRAW; wndclass.lpfnWndProcWndProc; wndclass.cbClsExtra0; wndclass.cbWndExtra0; wndclass.hInstancehinstance; wndclass.hIconLoadIcon(NULL,IDI_APPLICATION); wndclass.hCursorLoadCursor(NULL,IDC_ARROW); wndclass.hbrBackground(HBRUSH)GetStockObject(WHITE_BRUSH); wndclass.lpszMenuNameNULL; wndclass.lpszClassNameAppName; if(!RegisterClass(wndclass)) { MessageBox(NULL,TEXT(This program requires Windows NT!),AppName,MB_ICONERROR); return 0; } hwndCreateWindow(AppName,TEXT(九九乘法口诀表),\ WS_OVERLAPPEDWINDOW,\ CW_USEDEFAULT,\ CW_USEDEFAULT,\ CW_USEDEFAULT,\ CW_USEDEFAULT,\ NULL,\ NULL,\ hinstance,\ NULL); ShowWindow(hwnd,cmd); UpdateWindow(hwnd); while(GetMessage(msg,NULL,0,0)) { TranslateMessage(msg); DispatchMessage(msg); } return msg.wParam;}LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wparam,LPARAM lparam){ HDC hdc; PAINTSTRUCT ps; RECT rect; static x,y; int i,j; int len; TCHAR buf[50]; TEXTMETRIC tm; switch(message) { case WM_CREATE: hdcGetDC(hwnd); GetTextMetrics(hdc,tm); xtm.tmAveCharWidth; ytm.tmHeighttm.tmExternalLeading; ReleaseDC(hwnd,hdc); //MessageBox(NULL,TEXT(Create Successed!),TEXT(Successed),MB_OK); //PlaySound(TEXT(hello.wav),NULL,SND_FILENAME|SND_ASYNC); return 0; case WM_PAINT: hdcBeginPaint(hwnd,ps); GetClientRect(hwnd,rect); //DrawText(hdc,TEXT(Hello World!),-1,rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER); //TextOut(hdc,rect.right/2-(strlen(Hello World!)/2)*x,rect.bottom/2-y/2,TEXT(Hello World!),12); for(i1;i!10;i) { for(j1;j!i1;j) { lenwsprintf(buf,TEXT(%dx%d%-4d),j,i,i*j); TextOut(hdc,j*len*x,i*y,buf,len); } } EndPaint(hwnd,ps); return 0; case WM_DESTROY: PostQuitMessage(0); return 0; } return DefWindowProc(hwnd,message,wparam,lparam);}上面是一个打印windows下拥有窗口界面的九九乘法口诀表的c语言程序代码同样的c语言也会有其它的UI库比如GtkGtk是可移植的UI库可以使用它在Linux、windows包括mac等等操作系统上做ui程序设计一个简单的示例代码如下#include int main(int argc,char **argv){ GtkWidget *win; GtkWidget *label; int i,j; GString *str; gtk_init(argc,argv); wingtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_position(GTK_WINDOW(win),GTK_WIN_POS_CENTER); g_signal_connect(G_OBJECT(win),delete-event,G_CALLBACK(gtk_main_quit),NULL); strg_string_new(NULL); for(i1;i 9;i) { for(j1;j ! i1;j) g_string_append_printf(str,%dx%d%-4d,j,i,i*j); g_string_append(str,\n); } labelgtk_label_new(str-str); gtk_container_add(GTK_CONTAINER(win),label); gtk_widget_show_all(win); gtk_main(); g_string_free(str,TRUE); return 0;}取消评论
