On Fri, 2007-10-12 at 15:31 +0200, Jacek M. Holeczek wrote:
I don't see anything fundamentally different on the non-CE version,
Well, I do.
Any attempt to call the "ChangeDisplaySettingsEx" with use of the "non-CE"
DEVMODE version (as you name it) returns an error. After many many hours
of fights ... I discovered that the DEVMODEW structure was completely
different from what WinCE expected. After I "patched" it, my code started
to work.
I didn't make myself clear, I guess. I was not saying not to change it :)
I wrote:
>I don't see anything fundamentally different on the non-CE version,
>or are the _ANONYMOUS_UNION/_ANONYMOUS_STRUCT not doing their job?
I was refering specifically to the anonymous union/structs (which are
already in place), which allow you to have this:
struct A
{
int tag;
int field1;
int field2;
int field3;
};
... then, later you want to extend/tweak the struct, perhaps adding a
different tag, which has other fields of interest, and some others
unused. You can do this with gcc:
struct A
{
int tag;
union
{
struct
{
int field1;
int field2;
int field3;
};
int member1;
};
};
And this will still work:
struct A a;
a.field1 = 0;
Looks very close to what was done in DEVMODE for 9x/NT, doesn't it?
Danny Backx wrote:
> Another way to code this might be the patch I'm attaching now. It
> removes the duplicate definition which is on MSDN but instead merges the
> differences.
Either that, or something like the attached would be fine.
Cheers,
Pedro Alves
Index: wingdi.h
===================================================================
--- wingdi.h (revision 1057)
+++ wingdi.h (working copy)
@@ -1182,10 +1182,20 @@ extern "C" {
#define DM_PELSHEIGHT 0x00100000
#define DM_DISPLAYFLAGS 0x00200000
#define DM_DISPLAYFREQUENCY 0x00400000
+#ifndef _WIN32_WCE
#define DM_ICMMETHOD 0x00800000
#define DM_ICMINTENT 0x01000000
#define DM_MEDIATYPE 0x02000000
#define DM_DITHERTYPE 0x04000000
+#else /* _WIN32_WCE */
+#define DM_DISPLAYORIENTATION 0x00800000
+#define DM_DISPLAYQUERYORIENTATION 0x01000000
+#define DMDO_0 0
+#define DMDO_DEFAULT DMDO_0
+#define DMDO_90 1
+#define DMDO_180 2
+#define DMDO_270 4
+#endif /* _WIN32_WCE */
#if(WINVER >= 0x0500)
#define DM_PANNINGWIDTH 0x08000000
#define DM_PANNINGHEIGHT 0x10000000
@@ -1541,9 +1551,11 @@ typedef struct _devicemodeW {
short dmDefaultSource;
short dmPrintQuality;
} DUMMYSTRUCTNAME;
+#ifndef _WIN32_WCE
POINTL dmPosition;
DWORD dmDisplayOrientation;
DWORD dmDisplayFixedOutput;
+#endif
} DUMMYUNIONNAME;
short dmColor;
@@ -1558,9 +1570,14 @@ typedef struct _devicemodeW {
DWORD dmPelsHeight;
_ANONYMOUS_UNION union {
DWORD dmDisplayFlags;
+#ifndef _WIN32_WCE
DWORD dmNup;
+#endif
} DUMMYUNIONNAME2;
DWORD dmDisplayFrequency;
+#ifdef _WIN32_WCE
+ DWORD dmDisplayOrientation;
+#else
#if(WINVER >= 0x0400)
DWORD dmICMMethod;
DWORD dmICMIntent;
@@ -1573,6 +1590,7 @@ typedef struct _devicemodeW {
DWORD dmPanningHeight;
#endif
#endif /* WINVER >= 0x0400 */
+#endif /* _WIN32_WCE */
} DEVMODEW,*LPDEVMODEW,*PDEVMODEW;
typedef struct tagDIBSECTION {
BITMAP dsBm;
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