[reactos] 03/04: [WIN32SS:NTUSER] Remove some hardcoded buffer sizes + number of chars vs. bytes mixup.

[Hermès Bélusca-Maïto]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=fb4a6e38c7c6e3db13fb07...

commit fb4a6e38c7c6e3db13fb07222d813ca979d17b18
Author:     Hermès Bélusca-Maïto [e-mail]
AuthorDate: Wed Jan 2 20:53:42 2019 +0100
Commit:     Hermès Bélusca-Maïto [e-mail]
CommitDate: Wed Jan 2 21:12:21 2019 +0100

[WIN32SS:NTUSER] Remove some hardcoded buffer sizes + number of chars vs. bytes mixup.
---
 win32ss/user/ntuser/display.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/win32ss/user/ntuser/display.c b/win32ss/user/ntuser/display.c
index e511600149..8ef37c9c4b 100644
--- a/win32ss/user/ntuser/display.c
+++ b/win32ss/user/ntuser/display.c
@@ -169,7 +169,7 @@ InitVideo(VOID)
     Status = RegOpenKey(L"\REGISTRY\MACHINE\SYSTEM\CurrentControlSet\Control", &hkey);
     if (NT_SUCCESS(Status))
     {
-        cbValue = 256;
+        cbValue = sizeof(awcBuffer);
         Status = RegQueryValue(hkey, L"SystemStartOptions", REG_SZ, awcBuffer, &cbValue);
         if (NT_SUCCESS(Status))
         {
@@ -193,11 +193,11 @@ InitVideo(VOID)
     }

/* Read the name of the VGA adapter */
-    cbValue = 20;
+    cbValue = sizeof(awcDeviceName);
     Status = RegQueryValue(hkey, L"VgaCompatible", REG_SZ, awcDeviceName, &cbValue);
     if (NT_SUCCESS(Status))
     {
-        iVGACompatible = _wtoi(&awcDeviceName[13]);
+        iVGACompatible = _wtoi(&awcDeviceName[sizeof("\Device\Video")-1]);
         ERR("VGA adapter = %lu\n", iVGACompatible);
     }