如何通过命令行向Visual Studio项目导入/覆盖RCDATA资源？

Absolutely, you can automate this process to keep your RCDATA resources in sync with frequently changing files—no manual IDE steps needed. Here's how to set it up:

1. Manage Your Resource Script Directly #

Instead of relying on the IDE's import wizard, create (or modify) a .rc resource script file in your project. This file will explicitly reference your dynamic data file as RCDATA. For example, if your target file is dynamic_data.bin, add this line to your .rc file:

DYNAMIC_DATA RCDATA "path/to/dynamic_data.bin"

• Replace DYNAMIC_DATA with a unique identifier for your resource (you’ll use this to access it in code).
• Use an absolute path or a path relative to the .rc file’s location.

2. Compile the Resource via Command Line #

Visual Studio includes the Resource Compiler (rc.exe) which you can run from the command line to turn your .rc file into a .res object file that gets linked into your project.

First, ensure you have the Visual Studio command line environment set up (run the Developer Command Prompt for Visual Studio or use vcvarsall.bat to initialize build tools). Then run:

rc /r /fo "path/to/output/Resources.res" "path/to/your/Resources.rc"

• /r: Tells the compiler to generate a .res file instead of a .resobj.
• /fo: Specifies the output .res file path.

3. Integrate into Your Automated Build #

You have two main options to make this part of your command line build process:

Option A: Add the .rc File to Your Project #

If you add the .rc file to your Visual Studio project (.vcxproj), MSBuild will automatically compile it during the build process. It will also detect when dynamic_data.bin changes (since it’s a dependency of the .rc file) and recompile the resource automatically—no extra command line steps needed.

Option B: Run rc.exe as a Pre-Build Step #

If you prefer explicit control in your command line script, run the rc.exe command before invoking MSBuild to build your project. For example:

:: Initialize Visual Studio build environment
call "C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvarsall.bat" x64

:: Compile the resource
rc /r /fo "MyProject\Resources.res" "MyProject\Resources.rc"

:: Build the project
msbuild "MyProject\MyProject.vcxproj" /p:Configuration=Release /p:Platform=x64

4. Updating the Resource #

Since the .rc file directly references your dynamic data file, any changes to dynamic_data.bin will trigger a recompile of the resource during the next build (either via MSBuild’s dependency tracking or because you’re explicitly running rc.exe each time). You don’t need to "overwrite" the existing resource manually—the build process will handle replacing it with the updated file automatically.

Bonus: Accessing the Resource in Code #

To use the updated resource in your app, load it using the identifier you defined in the .rc file:

HRSRC hRes = FindResource(NULL, MAKEINTRESOURCE(DYNAMIC_DATA), RT_RCDATA);
HGLOBAL hGlobal = LoadResource(NULL, hRes);
LPVOID pData = LockResource(hGlobal);
DWORD size = SizeofResource(NULL, hRes);
// Use pData and size to access the binary data

内容的提问来源于stack exchange，提问作者Avi L