93 lines
3.2 KiB
C
93 lines
3.2 KiB
C
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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <Windows.h>
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#include <strsafe.h>
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#include <PathCch.h>
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int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow)
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{
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STARTUPINFO siStartInfo = {0};
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PROCESS_INFORMATION procInfo;
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wchar_t path[MAX_PATH];
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siStartInfo.wShowWindow = SW_HIDE;
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siStartInfo.dwFlags = STARTF_USESHOWWINDOW;
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/* Get the path to the currently running executable (blender-launcher.exe) */
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DWORD nSize = GetModuleFileName(NULL, path, MAX_PATH);
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if (!nSize) {
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return -1;
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}
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/* GetModuleFileName returns the number of characters written, but GetLastError needs to be
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* called to see if it ran out of space or not. However where would we be without exceptions
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* to the rule: "If the buffer is too small to hold the module name, the function returns nSize.
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* The last error code remains ERROR_SUCCESS." - source: MSDN. */
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if (GetLastError() == ERROR_SUCCESS && nSize == MAX_PATH) {
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return -1;
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}
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/* Remove the filename (blender-launcher.exe) from path. */
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if (PathCchRemoveFileSpec(path, MAX_PATH) != S_OK) {
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return -1;
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}
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/* Add blender.exe to path, resulting in the full path to the blender executable. */
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if (PathCchCombine(path, MAX_PATH, path, L"blender.exe") != S_OK) {
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return -1;
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}
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int required_size_chars = lstrlenW(path) + /* Module name */
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3 + /* 2 quotes + Space */
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lstrlenW(pCmdLine) + /* Original command line */
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1; /* Zero terminator */
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size_t required_size_bytes = required_size_chars * sizeof(wchar_t);
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wchar_t *buffer = (wchar_t *)malloc(required_size_bytes);
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if (!buffer) {
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return -1;
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}
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if (StringCbPrintfEx(buffer,
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required_size_bytes,
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NULL,
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NULL,
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STRSAFE_NULL_ON_FAILURE,
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L"\"%s\" %s",
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path,
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pCmdLine) != S_OK) {
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free(buffer);
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return -1;
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}
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BOOL success = CreateProcess(
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path, buffer, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, NULL, NULL, &siStartInfo, &procInfo);
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if (success) {
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/* Handles in PROCESS_INFORMATION must be closed with CloseHandle when they are no longer
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* needed - MSDN. Closing the handles will NOT terminate the thread/process that we just
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* started. */
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CloseHandle(procInfo.hThread);
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CloseHandle(procInfo.hProcess);
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}
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free(buffer);
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return success ? 0 : -1;
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}
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