CefInitialize崩潰 && Cef白屏

 

新建一個MFC Dialog工程，然后仿照CefSimple模仿實現自己的一個基於MFC窗口的Demo（具體代碼稍后上），注意我僅僅只配置了所需要依賴的lib，並沒有把CefSample的配置一起Copy，所以才導致后面的白屏，浪費了我一天時間。
坑一：CefInitialize崩潰
也許這個坑很多網友都遇到過，所以尋找度娘的時候問題很快就解決了，就是exe運行環境缺少必須要的資源包（不僅僅dll，所以圖方便我們直接從CefSimple環境拷貝出來）。
在這里插入圖片描述
坑二：Cef白屏
當出現白屏的時候我第一反應就是代碼有bug，於是我從MFC工程切換到win32工程，從子窗口切換到Popup，各種嘗試都不行，最后我把CefSimple整個工程拷貝過來，然后按照我的配置修改編譯依舊白屏，此刻問題基本確定：工程配置不對。但是工程配置有什么不對呢？只能一點點的比較，終於在最后發現：后期生成事件沒有配置。命令如下：

setlocal
mt.exe -nologo -manifest "H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/tests/cefsimple/cefsimple.exe.manifest" "H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/tests/cefsimple/compatibility.manifest" -outputresource:"E:/project/CefDemo/x64/Debug/cefsimple.exe";#1
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/chrome_elf.dll E:/project/CefDemo/x64/Debug/chrome_elf.dll
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/d3dcompiler_43.dll E:/project/CefDemo/x64/Debug/d3dcompiler_43.dll
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/d3dcompiler_47.dll E:/project/CefDemo/x64/Debug/d3dcompiler_47.dll
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/libcef.dll E:/project/CefDemo/x64/Debug/libcef.dll
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/libEGL.dll E:/project/CefDemo/x64/Debug/libEGL.dll
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/libGLESv2.dll E:/project/CefDemo/x64/Debug/libGLESv2.dll
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/natives_blob.bin E:/project/CefDemo/x64/Debug/natives_blob.bin
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/snapshot_blob.bin E:/project/CefDemo/x64/Debug/snapshot_blob.bin
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/v8_context_snapshot.bin E:/project/CefDemo/x64/Debug/v8_context_snapshot.bin
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_directory H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Debug/swiftshader E:/project/CefDemo/x64/Debug/swiftshader
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Resources/cef.pak E:/project/CefDemo/x64/Debug/cef.pak
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Resources/cef_100_percent.pak E:/project/CefDemo/x64/Debug/cef_100_percent.pak
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Resources/cef_200_percent.pak E:/project/CefDemo/x64/Debug/cef_200_percent.pak
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Resources/cef_extensions.pak E:/project/CefDemo/x64/Debug/cef_extensions.pak
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Resources/devtools_resources.pak E:/project/CefDemo/x64/Debug/devtools_resources.pak
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_if_different H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Resources/icudtl.dat E:/project/CefDemo/x64/Debug/icudtl.dat
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd
setlocal
"D:\Program Files\CMake\bin\cmake.exe" -E copy_directory H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/Resources/locales E:/project/CefDemo/x64/Debug/locales
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd

 

上面命令主要實現兩個功能：
1.將manifest 文件嵌入到exe內部。
2.將所依賴的文件copy到運行環境(所以如果配置了這個生成后事件，那么問題一就不需要手動拷貝依賴項了)。

manifest 文件學習參考：

什么是vs 程序的manifest文件
exe或者dll 嵌入manifest文件方法
VS2008 manifest文件簡單應用

所以白屏的根本原因是缺少manifest文件，導致運行的時候出問題。
解決方法兩種：

把上面的代碼完整Copy到生成后事件里面去【記得修改自己的工程目錄】
如果之前已經把必要的文件和資源Copy到了運行環境，那么我們只需要Copy如下一段代碼就OK啦（功能就是把manifest文件嵌入exe內部）【記得修改自己的工程目錄】：

setlocal
mt.exe -nologo -manifest "H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/tests/cefsimple/cefsimple.exe.manifest" "H:/cef/cef_binary_3.3538.1852.gcb937fc_windows64/tests/cefsimple/compatibility.manifest" -outputresource:"E:/project/CefDemo/x64/Debug/cefsimple.exe";#1
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone
:cmErrorLevel
exit /b %1
:cmDone
if %errorlevel% neq 0 goto :VCEnd

 

下一章節將描述如何把Cef作為一個子窗口集成到MFC工程和win32工程。
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版權聲明：本文為CSDN博主「CAir2」的原創文章，遵循CC 4.0 BY-SA版權協議，轉載請附上原文出處鏈接及本聲明。
原文鏈接：https://blog.csdn.net/CAir2/java/article/details/85006566