Hello,
I download the "User EFI Dev Studio Project" file from the discussion "The Down Low on Mathcad DLLs" from Aaron Shaw.
I have a question about the different function definition ...
In the "C:\Program Files\PTC\Mathcad Prime 3.0\Custom Functions\userpack.c" (or in the Help Centre - Custom Functions) the code is:
BOOL WINAPI _CRT_INIT(HINSTANCE hinstDLL, DWORD dwReason, LPVOID lpReserved);
BOOL WINAPI DllEntryPoint (HANDLE hDLL, DWORD dwReason, LPVOID lpReserved)
{ switch (dwReason)
{ case DLL_PROCESS_ATTACH:
{ // DLL is attaching to the address space of the current process.
if (!_CRT_INIT(hDLL, dwReason, lpReserved)) { return FALSE; }
if (!CreateUserErrorMessageTable( hDLL, 3, ErrorMessageTable ) ) break;
if ( CreateUserFunction( hDLL, &realsum ) == NULL ) break;
CreateUserFunction( hDLL, &transpose); break; }
In the "user-efi-dev-studio-project\User EFI Dev Studio Project\USERPACK - DevStudio Project\dllmain.cpp" the code is:
BOOL APIENTRY DllMain( HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved )
{ switch (ul_reason_for_call)
{ case DLL_PROCESS_ATTACH:
{ if (!CreateUserErrorMessageTable( hModule, 3, ErrorMessageTable ) ) break;
if ( CreateUserFunction( hModule, &realsum ) == NULL ) break;
CreateUserFunction( hModule, &transpose);
CreateUserFunction( hModule, &gmdate);
CreateUserFunction( hModule, &System);
break; }
I use the Visual Studio Prof 2010. I change all my files *.c in *.cpp, I change the "BOOL WINAPI _CRT ... BOOL WINAPI ... " in "BOOL APIENTRY ... ". I change all the DevStudio parameters exactly as the "User EFI Dev Studio Project" ...
... but the compiled DLL do not work. Prime does not load the compiled DLL.
I change back all the file in *.c, I change back to "BOOL WINAPI _CRT ... BOOL WINAPI ... " and I add the DllEntryPoint parameter in the "Linker-Advanced" property page.
The compiled DLL now works with Prime 3.0.
I wish understand the difference ... and which methode "BOOL WINAPI _CRT ... BOOL WINAPI ... " in "BOOL APIENTRY ... " is the best working methode.
Regards,
Jean-Francois
