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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 414 | daniel-mar | 1 | |
| 415 | daniel-mar | 2 | Windows NT 3.1 and 3.5x compatibility problems |
| 3 | ---------------------------------------------- |
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| 414 | daniel-mar | 4 | |
| 5 | Fixed problems: |
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| 6 | --------------- |
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| 7 | |||
| 8 | - `GetEnvironmentStringsA` and `FreeEnvironmentStrings` not found in WinAPI. |
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| 9 | |||
| 10 | Fixed: The CLib of OpenWatcom 1.9 imports these two functions. |
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| 11 | OpenWatcom 2.0 (beta nov 1 2017) calls these functions dynamically and is therefore compatible with Windows NT 3.1. |
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| 12 | |||
| 13 | - `CreateDIBSection` not found in WinAPI |
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| 14 | |||
| 15 | Fixed in SVN Revision 407 (removed because not required). |
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| 16 | |||
| 17 | - `GetVersionEx` not found in WinAPI. |
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| 18 | |||
| 415 | daniel-mar | 19 | Fixed in SVN Revision 411 and 414 (calling dynamically now). |
| 414 | daniel-mar | 20 | |
| 21 | - `RegisterClassExA` and `GetClassInfoExA` not found in WinAPI. |
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| 22 | |||
| 23 | Fixed in SVN Revision 412 (replaced by `RegisterClassA` and `GetClassInfoA`). |
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| 24 | |||
| 415 | daniel-mar | 25 | - Plugins created by the custom implementation of `UpdateResourceA` (for Win9x and WinNT<4.0) could not be loaded on |
| 26 | some versions of Windows, because the Optional PE Header `SizeOfImage` was calculated wrong. |
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| 27 | |||
| 28 | Fixed in SVN Revision 415. |
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| 29 | |||
| 416 | daniel-mar | 30 | - The version info of a 64 bit plugin cannot be written using Windows NT 3.51, because the resources could not be loaded from the 64 bit image. |
| 31 | |||
| 32 | Fixed in SVN Revision 416: The version info template is now inserted into the 32 bit image as `TPLT` resource. |
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| 33 | Therefore, the 64 bit image does not need to be read. |
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| 34 | |||
| 414 | daniel-mar | 35 | Open problems: |
| 36 | -------------- |
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| 37 | |||
| 38 | - WinNT311: "msctls_trackbar32" is not supported by Windows NT 3.1. DialogBoxParamA crashes with the confusing error code "Invalid Cursor Handle". |
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| 39 | Note: msctls_trackbar32 seems to be defined in COMCTL32.DLL, but Win NT 3.1 has no REGSVR32.EXE, so there can't be any controls added?? |
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| 40 | For now, we added an error message if the class can't be found (SVN Revision 413). |
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| 41 | Windows NT 3.51 has COMCTL32.DLL and works perfectly with the trackbars! |
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| 42 | |||
| 43 | - WinNT311: `LoadImageA` not found in WinAPI of Windows NT 3.1 (this is the last unresolved import!) ... how should we draw it? Filter Factory uses DrawIcon on a BUTTON control (BS_OWNERDRAW | WS_CHILD | WS_CLIPSIBLINGS). |
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| 44 | Remove "Hand Question" cursor in order to use the "Static" class instead of the custom class "CautionIcon"? |
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| 45 | Windows NT 3.51 has `LoadImageA` and works. |
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| 46 | TODO: Make call dynamic, so that Windows NT 3.1 can show at least an error message instead of failing silently. |
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| 47 | |||
| 48 | - If hand cursor is not existing in Windows, then use a handpointer located in the resources. |
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| 49 | |||
| 50 | - WinNT311: Icons (+, - and exclamation sign) graphics are broken (probably need low colored icons?) |
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| 51 | |||
| 52 | - Icons (+, - and exclamation sign) are drawn too big (Windows NT 3.1, and also Windows NT 3.51) |
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| 53 | They are STATIC with SS_ICON. It is probably automatically 32x32 |
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| 54 | |||
| 55 | - Windows NT 3.51 clicking the zoom icons does not work! |
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| 56 | The click event probably only works for Button classes? |
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| 415 | daniel-mar | 57 | => Ok, changed to pushbutton with ownerdraw. Now works |
| 414 | daniel-mar | 58 | |
| 59 | - Help button does not work |
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| 60 | |||
| 61 | - WinNT311+351: Preview image is not drawn at dialog box opening. You need to enter something first. |
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| 62 | |||
| 415 | daniel-mar | 63 | - Preview pane cannot be panned, because it seems that anything clickable needs to be a pushbutton in Win NT 3.51 |
| 64 | TODO: implement area as pushbutton? |
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| 414 | daniel-mar | 65 | |
| 66 | Questions: |
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| 67 | ---------- |
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| 68 | |||
| 69 | Which CPU architecture is required for OpenWatcom settings? Should we do very low settings 80386? |