This is one of most interesting problems I have found recently. We have a legacy Delphi 5 program (Rave Reports 4 references are preventing from upgrading to D2007).
When program is compiled with our template-generated v开发者_开发百科ersion resource it works fine. The problem arises when also template-generated manifest resource is added to a program's dpr.
Manifest is a "generic", ASCII file:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<assemblyIdentity
name="Name"
processorArchitecture="x86"
version="2.0.0.0"
type="win32"/>
<description>Desc</description>
<dependency>
<dependentAssembly>
<assemblyIdentity
type="win32"
name="Microsoft.Windows.Common-Controls"
version="6.0.0.0"
processorArchitecture="x86"
publicKeyToken="6595b64144ccf1df"
language="*"
/>
</dependentAssembly>
</dependency>
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
<security>
<requestedPrivileges>
<requestedExecutionLevel level="asInvoker" uiAccess="false"/>
</requestedPrivileges>
</security>
</trustInfo>
<compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
<application>
<supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
</application>
</compatibility>
</assembly>
In App.dpr there is a manifest resource reference:
{$R 'manifest.res' 'manifest.rc'}
Manifest is compiled by calling:
C:\Program Files\Borland\Delphi5\Bin\brcc32.exe manifest.rc
And when program is started following exception is raised:
exception class : EAccessViolation
exception message : Access violation at address 75A1A890 in module 'KERNELBASE.dll'. Read of address 00000001.
Call stack for main thread:
main thread ($1144):
75a1a890 +007 KERNELBASE.dll
75a1a97c +069 KERNELBASE.dll WideCharToMultiByte
73f28764 +048 comctl32.dll #342
777741f4 +016 user32.dll CallWindowProcA
00092de2 +0ca app.exe Controls TWinControl.DefaultHandler
0009336c +01c app.exe Controls TWinControl.WMNotify
000c2454 +024 app.exe ComCtrls TCustomListView.WMNotify
00090249 +111 app.exe Controls TControl.WndProc
00092d0a +1d2 app.exe Controls TWinControl.WndProc
000c39ea +072 app.exe ComCtrls TCustomListView.WndProc
0009290c +02c app.exe Controls TWinControl.MainWndProc
000a5880 +014 app.exe Forms StdWndProc
77757690 +044 user32.dll SendMessageW
777741f4 +016 user32.dll CallWindowProcA
000c1e6f +0c7 app.exe ComCtrls TCustomListView.HeaderWndProc
000a5880 +014 app.exe Forms StdWndProc
7763642b +02b ntdll.dll KiUserCallbackDispatcher
77753573 +00a user32.dll DispatchMessageA
000ae8c7 +083 app.exe Forms TApplication.ProcessMessage
000ae8fe +00a app.exe Forms TApplication.HandleMessage
000aeb09 +081 app.exe Forms TApplication.Run
00186ecf +077 app.exe mca initialization
75b61192 +010 kernel32.dll BaseThreadInitThunk
Linked comctl32.dll:
73f00000 comctl32.dll 6.10.7600.16385 C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7600.16385_none_421189da2b7fabfc
From what I can see the problem is bound with some Delphi 5 incompatibilities with comctl32.dll controls. I updated Delphi VCL to most recent one. Is there any other solution than just migrating to D2007 ?
You need more that just the manifest if I recall correctly. You also need Mike Lischke's theme manager component. This code eventually found its way into Delphi 7.
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