BVHSVGA.DLL: Difference between revisions

Latest revision as of 22:30, 17 January 2020

This file is the Base Video Handler for OS/2. Any OS/2 application that sets a video mode calls this DLL. In mode cases, however, the only application that sets any video modes is the PM display driver and the MODE.COM utility (for setting 132 column modes). The first time this DLL would be called is after the OS/2 bitmap logo appears (PM starts up then). This DLL is specified in the CONFIG.SYS in the following manner:

SET VIO_VGA=DEVICE(BVHVGA,BVHSVGA)

BVHVGA is used to set, save, and restore VGA modes, BVHSVGA for SVGA modes.

Versions

Date	Version	Size	Comments
2006-03-22	14.105	33,712 bytes	Super VGA Base Video Handler by IBM

DLL Entry Points

SETNUMBER9CLK
SETDIAMONDCLK
_WDSetPanelClk
DEVENABLE
HWINPWORD
HWINPBYTE
_WDPanelOn
HWOUTPBYTE
_ThinkPadHighestRes
HWOUTPWORD

DLLs Loaded

Device Driver Requirement

OEMHLP$ -
SCREEN$ - SCREEN01.SYS / SCREEN02.SYS

Source Code

The source code if this DLL is included on the IBM DDK under the terms of its licensing.

@@ Line 1: / Line 1: @@
-This file is the Base Video Handler for OS/2. Any OS/2 application that sets a video mode calls this DLL. In mode cases, however, the only application that sets any video modes is the PM display driver and the MODE.EXE utility (for setting 132 column modes). The first time this DLL would be called is after the OS/2 bitmap logo appears (PM starts up then). This DLL is specified in the CONFIG.SYS in the following manner:
+This file is the Base Video Handler for OS/2. Any OS/2 application that sets a video mode calls this DLL. In mode cases, however, the only application that sets any video modes is the PM display driver and the MODE.COM utility (for setting 132 column modes). The first time this DLL would be called is after the OS/2 bitmap logo appears (PM starts up then). This DLL is specified in the CONFIG.SYS in the following manner:
+ SET VIO_VGA=DEVICE(BVHVGA,BVHSVGA)
-          SET VIO_VGA=DEVICE(BVHVGA,BVHSVGA)
+BVHVGA is used to set, save, and restore VGA modes, BVHSVGA for SVGA modes.
-BVHVGA is used to set, save, and restore VGA modes, BVHSVGA for SVGA modes.
 ==Versions==
-{| class="wikitable"
+{|class="wikitable"
-|-
+!Date||Version||Size||Comments
-! Date !!Version !! Size  !! Comments
-|2006-03-22 9:47am || 14.105 ||33,712 bytes || Super VGA Base Video Handler by IBM.
 |-
+|2006-03-22||14.105||33,712 bytes||Super VGA Base Video Handler by IBM
 |}
 ==DLL Entry Points==
-<PRE>
+# SETNUMBER9CLK
-	Ordinal Object  Offset    Name
+# SETDIAMONDCLK
-                      bvhsvga
+# _WDSetPanelClk
-       1    0000:0088 SETNUMBER9CLK
+# DEVENABLE
-       1    0000:026E SETDIAMONDCLK
+# HWINPWORD
-       1    0000:007C _WDSetPanelClk
+# HWINPBYTE
-       2    0000      DEVENABLE
+# _WDPanelOn
-       1    0000:0B14 HWINPWORD
+# HWOUTPBYTE
-       1    0000:0B07 HWINPBYTE
+# _ThinkPadHighestRes
-       1    0000:002D _WDPanelOn
+# HWOUTPWORD
-       1    0000:0B21 HWOUTPBYTE
-       1    0000:004C _ThinkPadHighestRes
-       1    0000:0B2F HWOUTPWORD
-</PRE>
 ==DLLs Loaded==
 * [[DOSCALL1.DLL]]
 * [[OS2CHAR.DLL]]
+==Device Driver Requirement==
+* OEMHLP$ -
+* SCREEN$ - [[SCREEN01.SYS]] / [[SCREEN02.SYS]]
 ==Source Code==
 The source code if this DLL is included on the IBM DDK under the terms of its licensing.
+[[Category:DLL]]
-[[Category:Files]]