C++builder项目记录【互斥体】【桌面快捷方式】【form禁止拉伸】最简单实用

不让一个程序启动两次(变量不要与其他程序使用一样)：

//创建互斥量
HANDLE hMutexWF = CreateMutex(NULL, FALSE, "WFBsNavRunOnlyOneInstance");
if (hMutexWF == NULL || ERROR_ALREADY_EXISTS == ::GetLastError())//限制双启动
{
if (hMutexWF != NULL)
{
     CloseHandle(hMutexWF);
   }
   return false;
}
c++builder 禁止拉伸：
将Form的属性BorderStyle设成bsSingle或者bsDialog就可以了

桌面快捷方式建立：

//头文件
#include   <registry.hpp>

//使用
CreateLnk(Application->ExeName , "名字");

//方法
//----------------------------------------------------------------------
void __fastcall TForm2::CreateLnk(String FilePath, String FileName) {
LPMALLOC ShellMalloc;
LPITEMIDLIST DesktopPidl;
char DesktopDir[MAX_PATH];
if (FAILED(SHGetMalloc(&ShellMalloc))) {
    return;
}
if (FAILED(SHGetSpecialFolderLocation(NULL, CSIDL_DESKTOPDIRECTORY, &DesktopPidl))) {
    return;
}
if(!SHGetPathFromIDList(DesktopPidl, DesktopDir)) {
    ShellMalloc->Free(DesktopPidl);
    ShellMalloc->Release();
    return;
}
ShellMalloc->Free(DesktopPidl);
ShellMalloc->Release();

IShellLink* pLink;
IPersistFile* pPersistFile;
if (SUCCEEDED(CoInitialize(NULL))) {
    if (SUCCEEDED(CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
      IID_IShellLink, (void **) &pLink))) {
      pLink->SetPath(FilePath.c_str() );
      if (SUCCEEDED(pLink->QueryInte易做图ce(IID_IPersistFile, (void **)&pPersistFile))) {
        WideString strShortCutLocation = DesktopDir;
        strShortCutLocation += "\\"+FileName+".lnk";
        pPersistFile->Save(strShortCutLocation.c_bstr() , 0);
        pPersistFile->Release();
      }
      pLink->Release();
    }
    CoUninitialize();
}
}

摘自破空的专栏

补充：软件开发 , C++ ,