This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(67.2, 73%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EP%3C/text%3E%3C/svg%3E)
I have C++ code that includes calling InitCommonControls() or InitCommonControlsEx(&InitCtrls). This compiles and links with x86 build, but not with x64. I get "Unresloved external symbol __imp_InitControlsEx referenced in function WinMain..." I use #include <commctrl.h>. the name comctrl32.lib sort of hints at a problem here. Is there some other include to use? What should I do?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(92.8, 12%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDL%3C/text%3E%3C/svg%3E)
The lib file name should stay the same in both. I'd suspect that there's something in your 32-bit build configuration that's absent in your 64-bit build configuration - possibly a reference in the lib settings to include that library?
I am using VisualStudion 2019. There is no difference that I am awre of. I just change the build configuration.
Do you link with comctl32.lib in x64 ?
Like :
#pragma comment (lib, "comctl32")
Thank you, that solved it. But why is it needed?
Maybe it was not set in Project Configuration Properties for your x64 configuration but it was in x86
(mainly Linker/Input/Additional Dependencies)
Thank you for answering. This is getting interesting. I checked the Linker... Additionnal Dependencies, it was not included, and there is no difference between x86 and x64. I also tried to add comctl32.lib in that list, (i appears if I add something in one confguration it also turns up in the other), and remove the #pragma comment. This brought back the problem. The pragma statement seems to be neccessary. Is this a Visual Studio bug?
If I create a new C++ console project and reference InitCommonControls, both x86 & x64 builds produce the LNK2019 error for it.
If I add Comctl32.lib to the Linker, Input, Additional Dependencies for those configurations, it resolves the issue.
Try doing the same yourself to confirm that it's not your VS installation at fault.