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Hi Monks,

I'm trying to write a perl script in a Windows environment that will detect the color of the pixel the cursor is pointing at. After some cpan searching, Win32::Screenshot looks ideal, as it allows me to do a quick capture of a specified (small) rectangle on the screen. This would be much more efficient than doing a full screen or window capture, and then picking through the data to find my pixel.

However, I'm having a tough time getting Win32::Screenshot to install correctly. It has a prerequisite of installing Image-Magick. I installed the windows binary, and during the installation, it also installed the perl interface. I verified this in ppm with a query:

15. Image-Magick 6.2.3 ImageMagick PERL Extension

According to the Screenshot README, that's the only prerequisite. So I run "perl Makefile.PL" in the Screenshot directory, and I get the following output:

C:\apps\Perl\dev\Win32-Screenshot-1.20>perl Makefile.PL
Note (probably harmless): No library found for comctl32.lib
Note (probably harmless): No library found for oldnames.lib
Note (probably harmless): No library found for kernel32.lib
Note (probably harmless): No library found for user32.lib
Note (probably harmless): No library found for gdi32.lib
Note (probably harmless): No library found for winspool.lib
Note (probably harmless): No library found for comdlg32.lib
Note (probably harmless): No library found for advapi32.lib
Note (probably harmless): No library found for shell32.lib
Note (probably harmless): No library found for ole32.lib
Note (probably harmless): No library found for oleaut32.lib
Note (probably harmless): No library found for netapi32.lib
Note (probably harmless): No library found for uuid.lib
Note (probably harmless): No library found for ws2_32.lib
Note (probably harmless): No library found for mpr.lib
Note (probably harmless): No library found for winmm.lib
Note (probably harmless): No library found for version.lib
Note (probably harmless): No library found for odbc32.lib
Note (probably harmless): No library found for odbccp32.lib
Note (probably harmless): No library found for msvcrt.lib
Writing Makefile for Win32::Screenshot
[download]

If the only prerequisite is Image Magick, why are all these libraries missing??

nmake install produces the following error:


C:\apps\Perl\dev\Win32-Screenshot-1.20>nmake install

Microsoft (R) Program Maintenance Utility   Version 1.50
Copyright (c) Microsoft Corp 1988-94. All rights reserved.

        cl -c  -I.  -nologo -Gf -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CO
+NSOLE -DNO
_STRICT -DHAVE_DES_FCRYPT -DNO_HASH_SEED -DPERL_IMPLICIT_CONTEXT -DPER
+L_IMPLICIT
_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -MD -Zi -DNDEBUG -O1    -DVERS
+ION=\"1.20
\"  -DXS_VERSION=\"1.20\"  "-IC:\apps\Perl\lib\CORE"   Screenshot.c
'cl' is not recognized as an internal or external command,
operable program or batch file.
NMAKE : fatal error U1077: 'C:\WINDOWS\system32\cmd.exe' : return code
+ '0x1'
Stop.
[download]

I assume "cl" is a c compiler, but I've never had to use a compiler to do a perl install, so what's going on here? Is there a way I can get this cl compiler, or can I specfiy a different compiler?

Any help with this is greatly appreciated.

In reply to Installing Win32::Screenshot by TROGDOR

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