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add create_interface() to cdll.c.

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Use it to initialize the dll interface and return a pointer to it.
This commit is contained in:
onyx-and-iris
2024-07-05 10:41:07 +01:00
parent a28db25bcc
commit 930093da7f
3 changed files with 84 additions and 84 deletions
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117
src/cdll.c
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@@ -3,63 +3,40 @@
#include <windows.h>
#include "cdll.h"
#include "util.h"
#include "log.h"
/*******************************************************************************/
/** GET VOICEMEETER DIRECTORY **/
/*******************************************************************************/
static T_VBVMR_INTERFACE iVMR;
#define INSTALLER_UNINST_KEY "VB:Voicemeeter {17359A74-1236-5467}"
static long initialize_dll_interfaces(PT_VMR vmr);
static bool registry_get_voicemeeter_folder(char *szDir);
#ifndef KEY_WOW64_32KEY
#define KEY_WOW64_32KEY 0x0200
#endif
bool __cdecl registry_get_voicemeeter_folder(char *szDir)
PT_VMR create_interface()
{
char szKey[256];
char sss[1024];
DWORD nnsize = 1024;
HKEY hkResult;
LONG rep;
DWORD pptype = REG_SZ;
sss[0] = 0;
const char uninstDirKey[] = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall";
PT_VMR vmr = &iVMR;
int rep;
// build Voicemeeter uninstallation key
strcpy(szKey, uninstDirKey);
strcat(szKey, "\\");
strcat(szKey, INSTALLER_UNINST_KEY);
// open key
rep = RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, 0, KEY_READ, &hkResult);
if (rep != ERROR_SUCCESS)
rep = initialize_dll_interfaces(vmr);
if (rep < 0)
{
// if not present we consider running in 64bit mode and force to read 32bit registry
rep = RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, 0, KEY_READ | KEY_WOW64_32KEY, &hkResult);
if (rep == -100)
{
log_fatal("Voicemeeter is not installed");
exit(EXIT_FAILURE);
}
else
{
log_fatal("Error loading Voicemeeter dll with code %d\n", rep);
exit(EXIT_FAILURE);
}
}
if (rep != ERROR_SUCCESS)
return false;
// read uninstall path from registry
rep = RegQueryValueEx(hkResult, "UninstallString", 0, &pptype, (unsigned char *)sss, &nnsize);
RegCloseKey(hkResult);
if (pptype != REG_SZ)
return false;
if (rep != ERROR_SUCCESS)
return false;
// remove name to get the path only
remove_name_in_path(sss);
if (nnsize > 512)
nnsize = 512;
strncpy(szDir, sss, nnsize);
return true;
return vmr;
}
/*******************************************************************************/
/** GET DLL INTERFACE **/
/*******************************************************************************/
long initialize_dll_interfaces(PT_VMR vmr)
static long initialize_dll_interfaces(PT_VMR vmr)
{
HMODULE G_H_Module = NULL;
char szDllName[1024];
@@ -168,4 +145,56 @@ long initialize_dll_interfaces(PT_VMR vmr)
return -38;
return 0;
}
/*******************************************************************************/
/** GET VOICEMEETER DIRECTORY **/
/*******************************************************************************/
#define INSTALLER_UNINST_KEY "VB:Voicemeeter {17359A74-1236-5467}"
#ifndef KEY_WOW64_32KEY
#define KEY_WOW64_32KEY 0x0200
#endif
static bool registry_get_voicemeeter_folder(char *szDir)
{
char szKey[256];
char sss[1024];
DWORD nnsize = 1024;
HKEY hkResult;
LONG rep;
DWORD pptype = REG_SZ;
sss[0] = 0;
const char uninstDirKey[] = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall";
// build Voicemeeter uninstallation key
strcpy(szKey, uninstDirKey);
strcat(szKey, "\\");
strcat(szKey, INSTALLER_UNINST_KEY);
// open key
rep = RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, 0, KEY_READ, &hkResult);
if (rep != ERROR_SUCCESS)
{
// if not present we consider running in 64bit mode and force to read 32bit registry
rep = RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, 0, KEY_READ | KEY_WOW64_32KEY, &hkResult);
}
if (rep != ERROR_SUCCESS)
return false;
// read uninstall path from registry
rep = RegQueryValueEx(hkResult, "UninstallString", 0, &pptype, (unsigned char *)sss, &nnsize);
RegCloseKey(hkResult);
if (pptype != REG_SZ)
return false;
if (rep != ERROR_SUCCESS)
return false;
// remove name to get the path only
remove_name_in_path(sss);
if (nnsize > 512)
nnsize = 512;
strncpy(szDir, sss, nnsize);
return true;
}