Programatically create native DLL using VsDevCmd.bat - winapi

Question

I need to run VsDevCmd.bat with parameters but, when I run this code, VsDevCmd.bat gets executed but no parameters get passed in.
The code is following :
SHELLEXECUTEINFO ShExecInfo = {0};
ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
ShExecInfo.fMask = NULL;
ShExecInfo.hwnd = NULL;
ShExecInfo.lpVerb = NULL;
ShExecInfo.lpFile = "C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\Common7\\Tools\\VsDevCmd.bat";
ShExecInfo.lpParameters = "cl.exe /D_USRDLL /D_WINDLL C:\\MyDLL.cpp C:\\MyDLL.def /link /DLL /OUT:MyDLL.dll";
ShExecInfo.lpDirectory = "C:\\";
ShExecInfo.nShow = SW_MAXIMIZE;
ShExecInfo.hInstApp = NULL;
int nRet = (int) ShellExecuteEx(&ShExecInfo);
if (nRet >= 32)
{
DWORD dw = GetLastError();
char szMsg[250];
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, 0, dw, 0, szMsg, sizeof(szMsg), NULL);
MessageBox(hWnd, szMsg, "ERROR", MB_ICONEXCLAMATION | MB_OK);
}
WaitForSingleObject (ShExecInfo.hProcess, INFINITE);

Answer 1

If you want to compile a DLL from within your application and you're using Visual Studio why don't you execute devenv to build a solution file containing the DLL you want to build?
Have a look at the documentation of devenv.
So your code should look like this:
SHELLEXECUTEINFO ShExecInfo = {0};
ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
ShExecInfo.fMask = NULL;
ShExecInfo.hwnd = NULL;
ShExecInfo.lpVerb = NULL;
ShExecInfo.lpFile = "devenv";
ShExecInfo.lpParameters = "/build yoursolution.sln";
ShExecInfo.lpDirectory = "C:\\";
ShExecInfo.nShow = SW_MAXIMIZE;
ShExecInfo.hInstApp = NULL;
if (ShellExecuteEx(&ShExecInfo) != FALSE)
{
WaitForSingleObject (ShExecInfo.hProcess, INFINITE);
DWORD exitCode;
if (GetExitCodeProcess(ShExecInfo.hProcess, &exitCode) != FALSE)
{
/*
** Process exit code of devenv
** I haven't found something on the internet but I assume that exitCode=0 means success!
*/
if (exitCode != 0)
{
MessageBox(hWnd, "devenv failed!", "ERROR", MB_ICONEXCLAMATION | MB_OK);
}
}
else
{
DWORD dw = GetLastError();
char szMsg[250];
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, 0, dw, 0, szMsg, sizeof(szMsg), NULL);
MessageBox(hWnd, szMsg, "ERROR", MB_ICONEXCLAMATION | MB_OK);
}
CloseHandle(ShExecInfo.hProcess);
}
else
{
DWORD dw = GetLastError();
char szMsg[250];
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, 0, dw, 0, szMsg, sizeof(szMsg), NULL);
MessageBox(hWnd, szMsg, "ERROR", MB_ICONEXCLAMATION | MB_OK);
}