GreDeviceSetGlobalAttribute

GreDeviceSetGlobalAttribute sets the individual primitive attributes to the specified value in the line, area, character, image, and marker bundles.

This function must be supported by the presentation driver.

Simulation support

None. This function is mandatory for all drivers.

Syntax

GreDeviceSetGlobalAttribute(hdc, lAttrType, lAttribute, flOptions, pInstance, lFunction)

Parameters

hdc (HDC) - input

Device context handle.

lAttrType (LONG) - input

Specifies the attribute.

Possible attribute types are:

• ATYPE_COLOR Foreground color
• ATYPE_BACK_COLOR Background color
• ATYPE_MIX_MODE Foreground mix
• ATYPE_BACK_MIX_MODE Background mix ATYPE_BACK_COLOR and ATYPE_BACK_MIX_MODE do not apply to the line bundle.

lAttribute (LONG) - input

New attribute value.

flOptions (ULONG) - input

Options flag.

The only allowable option is:

GATTR_DEFAULT When set, the attribute indicated by lAttrType is set to its default value. When this flag is not set, the attribute is set to the value of lAttribute.

pInstance (PVOID) - input

Pointer to instance data.

lFunction (ULONG) - input

High-order WORD=flags; low-order WORD=NGreDeviceSetGlobalAttribute.

Returns

rc (BOOL) - returns

Return Codes.

On completion, the handling routine must return a BOOLEAN value to indicate success or an error.

• TRUE Successful
• FALSE Error

Possible Errors Detected: When an error is detected, the handling routine must call WinSetErrorInfo to post the condition. Error codes for conditions that the handling routine is expected to check include:

• PMERR_DEV_FUNC_NOT_INSTALLED
• PMERR_INV_BACKGROUND_COL_ATTR
• PMERR_INV_BACKGROUND_MIX_ATTR
• PMERR_INV_COLOR_ATTR
• PMERR_INV_HDC
• PMERR_INV_MIX_ATTR

Refer to the "Error Explanations" section in the Presentation Manager Programming Reference for further explanation.

Sample

#define INCL_GRE_DEVMISC1
#include <os2.h>

HDC      hdc;         /*  Device context handle. */
LONG     lAttrType;   /*  Specifies the attribute. */
LONG     lAttribute;  /*  New attribute value. */
ULONG    flOptions;   /*  Options flag. */
PVOID    pInstance;   /*  Pointer to instance data. */
ULONG    lFunction;
BOOL     rc;          /*  Return Codes. */

rc = GreDeviceSetGlobalAttribute(hdc, lAttrType,
       lAttribute, flOptions, pInstance, lFunction);

Remarks

If this call sets any attributes to a value that is not in the defined range of values for that attribute, the handling routine must restore all attributes to the value they had on entry to this routine.